Doves are known for their inappropriate nesting sites. Their nest is usually a fragile, shallow platform of twigs. They will nest on the branch of a shrub, tree or even sometimes on the ground. They do not nest in bird houses and so I do not recommend placing a house above the nest.
Doves, like a lot of birds, rely on camouflage to protect them from predators’ attacks. Sometimes they remain still until danger passes or they may leave the nest as danger approaches, to lure the predator away.
When they are not nesting they generally eat enough to fill their bi-lobed crops and then fly back to digest. The bird's crop is a large sac at the bottom of the esophagus. In some warmer areas the Mourning Doves nest almost year round because they feed their young “crop milk,” a fluid from the lining of the crop. The parents regurgitate the "milk" directly into the hatchling's mouth and throat.
Mourning Doves can be found throughout most of North America and are considered among the top ten most abundant birds in the United States. While the average longevity for a typical adult is only about 1.5 years, the oldest known free-living Mourning Dove, as proven by bird banding research, was more than 31 years old. This is the longest life-span ever recorded for any terrestrial bird found in North America.